eprintid: 10198506 rev_number: 11 eprint_status: archive userid: 699 dir: disk0/10/19/85/06 datestamp: 2024-10-15 07:19:24 lastmod: 2025-01-23 17:01:53 status_changed: 2024-10-15 07:19:24 type: article metadata_visibility: show sword_depositor: 699 creators_name: Zou, Jiaqi creators_name: Xu, Hao creators_name: Wang, Chao creators_name: Xu, Lvxin creators_name: Sun, Songlin creators_name: Meng, Kaitao creators_name: Masouros, Christos creators_name: Wong, Kai-Kit title: Shifting the ISAC Trade-Off With Fluid Antenna Systems ispublished: pub divisions: UCL divisions: B04 divisions: F46 keywords: Fluid antenna system, ISAC, port selection note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. abstract: As an emerging reconfigurable antenna technology, fluid antenna system (FAS) has the capability of improving both sensing and communication (S&C) performance by switching the antenna position over the available ports. This increased spatial degree-of-freedom (DoF) by FAS can be translated into enlarging the trade-off region for integrated sensing and communication (ISAC). In this letter, we propose a signal model for FAS-enabled ISAC and jointly optimize the transmit beamforming and port selection of FAS. In particular, our objective is to minimize the transmit power, while satisfying both communication and sensing requirements. To tackle this, an efficient iterative algorithm based on sparse optimization, convex approximation, and a penalty approach is developed. Our simulation results illustrate that the proposed scheme can attain 33% reductions in the transmit power with guaranteed S&C performance, showing the great potential of FAS for striking a balance between S&C in ISAC systems. date: 2024-12 date_type: published publisher: Institute of Electrical and Electronics Engineers (IEEE) official_url: http://dx.doi.org/10.1109/lwc.2024.3473991 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2327361 doi: 10.1109/lwc.2024.3473991 lyricists_name: Masouros, Christos lyricists_name: Wong, Kai-Kit lyricists_name: Xu, Hao lyricists_name: Meng, Kaitao lyricists_id: CMASO14 lyricists_id: KWONG98 lyricists_id: HXUCX90 lyricists_id: KMENG45 actors_name: Masouros, Christos actors_id: CMASO14 actors_role: owner full_text_status: public publication: IEEE Wireless Communications Letters volume: 13 number: 12 pagerange: 3479-3483 issn: 2162-2337 citation: Zou, Jiaqi; Xu, Hao; Wang, Chao; Xu, Lvxin; Sun, Songlin; Meng, Kaitao; Masouros, Christos; Zou, Jiaqi; Xu, Hao; Wang, Chao; Xu, Lvxin; Sun, Songlin; Meng, Kaitao; Masouros, Christos; Wong, Kai-Kit; - view fewer <#> (2024) Shifting the ISAC Trade-Off With Fluid Antenna Systems. IEEE Wireless Communications Letters , 13 (12) pp. 3479-3483. 10.1109/lwc.2024.3473991 <https://doi.org/10.1109/lwc.2024.3473991>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10198506/7/Masouros_Shifting%20the%20ISAC%20Trade-Off%20With%20Fluid%20Antenna%20Systems_AAM2.pdf